High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! St. Martin's Island is a small island in the northeast part of the Bay of Bengal, about 9 km south of the tip of the Cox's Bazar-Teknaf peninsula, and forming the southernmost part of Bangladesh. It is the only coral island in Bangladesh. It is about 8 km west of the northwest coast of Myanmar at the mouth of the Naf River. The local name of the island is "Narical Gingira", also spelled "Narikel Janjina/Jinjera", translated from Bangla, meaning 'Coconut Island'.